[INF]Add security policy (#434)

Signed-off-by: lrabbit <[email protected]>

Author: Lrabbit125

SECURITY.md

@@ -0,0 +1,7 @@
+# Security Policy
+This document provides guidelines for reporting security vulnerabilities in starrocks connector for flink.
+
+## How to report a vulnerability?
+To ensure responsible disclosure, please avoid submitting security issues via public GitHub issues or pull requests.  
+Instead, please report potential vulnerabilities by sending the details to [[email protected]](mailto:[email protected]).
+